Abstract

Contributed Talk - Splinter StarFormation   (MW-1250)

The ANTIHEROES-PRODIGE large program: Unveiling the chemical and kinematic connection from the large-scale environment down to protostellar systems

Caroline Gieser & the ANTIHEROES-PRODIGE team
Max Planck Institute for Astronomy

Star formation proceeds hierarchically from molecular cloud scales down to individual protostars, yet the role of asymmetric infalling structures, so called streamers, in linking large-scale cloud material to protoplanetary disks remains poorly understood. In particular how the chemical composition of the disk as well as the accretion rate onto the protostar could be influenced. We are investigating this connection towards a systematic sample of 30 Class 0/I protostellar systems in the Perseus star-forming region. Using sensitive molecular line observations at 1.4 mm obtained with the IRAM 30 m telescope large program "ANTIHEROES" and NOEMA large program "PRODIGE" spatial scales from ~20 000 au to ~300 au are probed. A first case-study reveals a continuous kinematic connection from the large-scale envelope through streamers to the disks in the L1448N star-forming region, demonstrating that the embedded protostellar systems are still actively fed by remnant envelope material. Ongoing work focusses on the change of chemical composition along these scales.